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Edit File: mergeMapTo-spec.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var chai_1 = require("chai");
var testing_1 = require("rxjs/testing");
var operators_1 = require("rxjs/operators");
var rxjs_1 = require("rxjs");
var observableMatcher_1 = require("../helpers/observableMatcher");
describe('mergeMapTo', function () {
    var testScheduler;
    beforeEach(function () {
        testScheduler = new testing_1.TestScheduler(observableMatcher_1.observableMatcher);
    });
    it('should map-and-flatten each item to an Observable', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('    x-x-x|            ');
            var xsubs = [
                '               --^----!            ',
                '               --------^----!      ',
                '               -----------^----!   ',
            ];
            var e1 = hot('  --1-----3--5-------|');
            var e1subs = '  ^------------------!';
            var expected = '--x-x-x-x-xxxx-x---|';
            var result = e1.pipe((0, operators_1.mergeMapTo)(x));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should support the deprecated resultSelector', function () {
        var results = [];
        (0, rxjs_1.of)(1, 2, 3)
            .pipe((0, operators_1.mergeMapTo)((0, rxjs_1.of)(4, 5, 6), function (a, b, i, ii) { return [a, b, i, ii]; }))
            .subscribe({
            next: function (value) {
                results.push(value);
            },
            error: function (err) {
                throw err;
            },
            complete: function () {
                (0, chai_1.expect)(results).to.deep.equal([
                    [1, 4, 0, 0],
                    [1, 5, 0, 1],
                    [1, 6, 0, 2],
                    [2, 4, 1, 0],
                    [2, 5, 1, 1],
                    [2, 6, 1, 2],
                    [3, 4, 2, 0],
                    [3, 5, 2, 1],
                    [3, 6, 2, 2],
                ]);
            },
        });
    });
    it('should support a void resultSelector (still deprecated)', function () {
        var results = [];
        (0, rxjs_1.of)(1, 2, 3)
            .pipe((0, operators_1.mergeMapTo)((0, rxjs_1.of)(4, 5, 6), void 0))
            .subscribe({
            next: function (value) {
                results.push(value);
            },
            error: function (err) {
                throw err;
            },
            complete: function () {
                (0, chai_1.expect)(results).to.deep.equal([4, 5, 6, 4, 5, 6, 4, 5, 6]);
            },
        });
    });
    it('should mergeMapTo many regular interval inners', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('  ----1---2---3---(4|)                        ');
            var xsubs = [
                '               ^---------------!                           ',
                '               ----^---------------!                       ',
                '               ----------------^---------------!           ',
                '               ------------------------^---------------!   ',
            ];
            var e1 = hot('  a---b-----------c-------d-------|           ');
            var e1subs = '  ^-------------------------------!           ';
            var expected = '----1---(21)(32)(43)(41)2---(31)(42)3---(4|)';
            var result = e1.pipe((0, operators_1.mergeMapTo)(x));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map values to constant resolved promises and merge', function (done) {
        var source = (0, rxjs_1.from)([4, 3, 2, 1]);
        var results = [];
        source.pipe((0, operators_1.mergeMapTo)((0, rxjs_1.from)(Promise.resolve(42)))).subscribe({
            next: function (x) {
                results.push(x);
            },
            error: function () {
                done(new Error('Subscriber error handler not supposed to be called.'));
            },
            complete: function () {
                (0, chai_1.expect)(results).to.deep.equal([42, 42, 42, 42]);
                done();
            },
        });
    });
    it('should map values to constant rejected promises and merge', function (done) {
        var source = (0, rxjs_1.from)([4, 3, 2, 1]);
        source.pipe((0, operators_1.mergeMapTo)((0, rxjs_1.from)(Promise.reject(42)))).subscribe({
            next: function () {
                done(new Error('Subscriber next handler not supposed to be called.'));
            },
            error: function (err) {
                (0, chai_1.expect)(err).to.equal(42);
                done();
            },
            complete: function () {
                done(new Error('Subscriber complete handler not supposed to be called.'));
            },
        });
    });
    it('should mergeMapTo many outer values to many inner values', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                        ');
            var xsubs = [
                '               -^-------------------!                        ',
                '               ---------^-------------------!                ',
                '               -----------------^-------------------!        ',
                '               -------------------------^-------------------!',
            ];
            var e1 = hot('  -a-------b-------c-------d-------|            ');
            var e1subs = '  ^--------------------------------!            ';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)(lj)k---l---|';
            expectObservable(e1.pipe((0, operators_1.mergeMapTo)(x))).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo many outer to many inner, complete late', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                            ');
            var xsubs = [
                '               -^-------------------!                            ',
                '               ---------^-------------------!                    ',
                '               -----------------^-------------------!            ',
                '               -------------------------^-------------------!    ',
            ];
            var e1 = hot('  -a-------b-------c-------d-----------------------|');
            var e1subs = '  ^------------------------------------------------!';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)(lj)k---l-------|';
            expectObservable(e1.pipe((0, operators_1.mergeMapTo)(x))).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo many outer to many inner, outer never completes', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                                  ');
            var xsubs = [
                '               -^-------------------!                                  ',
                '               ---------^-------------------!                          ',
                '               -----------------^-------------------!                  ',
                '               -------------------------^-------------------!          ',
                '               ---------------------------------^-------------------!  ',
                '               -------------------------------------------------^-----!',
            ];
            var e1 = hot('  -a-------b-------c-------d-------e---------------f------');
            var e1subs = '  ^------------------------------------------------------!';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)(lj)(ki)(lj)k---l---i-';
            var unsub = '   -------------------------------------------------------!';
            var result = e1.pipe((0, operators_1.mergeMapTo)(x));
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should not break unsubscription chains when result is unsubscribed explicitly', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                                  ');
            var xsubs = [
                '               -^-------------------!                                  ',
                '               ---------^-------------------!                          ',
                '               -----------------^-------------------!                  ',
                '               -------------------------^-------------------!          ',
                '               ---------------------------------^-------------------!  ',
                '               -------------------------------------------------^-----!',
            ];
            var e1 = hot('  -a-------b-------c-------d-------e---------------f------');
            var e1subs = '  ^------------------------------------------------------!';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)(lj)(ki)(lj)k---l---i-';
            var unsub = '   -------------------------------------------------------!';
            var result = e1.pipe((0, operators_1.map)(function (x) { return x; }), (0, operators_1.mergeMapTo)(x), (0, operators_1.map)(function (x) { return x; }));
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo many outer to many inner, inner never completes', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l-                        ');
            var xsubs = [
                '               -^-----------------------------------------',
                '               ---------^---------------------------------',
                '               -----------------^-------------------------',
                '               -------------------------^-----------------',
            ];
            var e1 = hot('  -a-------b-------c-------d-------|         ');
            var e1subs = '  ^--------------------------------!         ';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)(lj)k---l-';
            expectObservable(e1.pipe((0, operators_1.mergeMapTo)(x))).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo many outer to many inner, and inner throws', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l-------#        ');
            var xsubs = [
                '               -^-----------------------!        ',
                '               ---------^---------------!        ',
                '               -----------------^-------!        ',
                '               -------------------------(^!)     ',
            ];
            var e1 = hot('  -a-------b-------c-------d-------|');
            var e1subs = '  ^------------------------!        ';
            var expected = '-----i---j---(ki)(lj)(ki)#        ';
            expectObservable(e1.pipe((0, operators_1.mergeMapTo)(x))).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo many outer to many inner, and outer throws', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|            ');
            var xsubs = [
                '               -^-------------------!            ',
                '               ---------^-------------------!    ',
                '               -----------------^---------------!',
                '               -------------------------^-------!',
            ];
            var e1 = hot('  -a-------b-------c-------d-------#');
            var e1subs = '  ^--------------------------------!';
            var expected = '-----i---j---(ki)(lj)(ki)(lj)(ki)#';
            expectObservable(e1.pipe((0, operators_1.mergeMapTo)(x))).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo many outer to many inner, both inner and outer throw', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---#            ');
            var xsubs = [
                '               -^-------------------!            ',
                '               ---------^-----------!            ',
                '               -----------------^---!            ',
            ];
            var e1 = hot('  -a-------b-------c-------d-------#');
            var e1subs = '  ^--------------------!            ';
            var expected = '-----i---j---(ki)(lj)#            ';
            expectObservable(e1.pipe((0, operators_1.mergeMapTo)(x))).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo many cold Observable, with parameter concurrency=1, without resultSelector', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                                        ');
            var xsubs = [
                '               -^-------------------!                                        ',
                '               ---------------------^-------------------!                    ',
                '               -----------------------------------------^-------------------!',
            ];
            var e1 = hot('  -a-------b-------c---|                                        ');
            var e1subs = '  ^--------------------!                                        ';
            var expected = '-----i---j---k---l-------i---j---k---l-------i---j---k---l---|';
            var result = e1.pipe((0, operators_1.mergeMapTo)(x, 1));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo to many cold Observable, with parameter concurrency=2, without resultSelector', function () {
        testScheduler.run(function (_a) {
            var cold = _a.cold, hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var x = cold('   ----i---j---k---l---|                    ');
            var xsubs = [
                '               -^-------------------!                    ',
                '               ---------^-------------------!            ',
                '               ---------------------^-------------------!',
            ];
            var e1 = hot('  -a-------b-------c---|                    ');
            var e1subs = '  ^--------------------!                    ';
            var expected = '-----i---j---(ki)(lj)k---(li)j---k---l---|';
            var result = e1.pipe((0, operators_1.mergeMapTo)(x, 2));
            expectObservable(result).toBe(expected);
            expectSubscriptions(x.subscriptions).toBe(xsubs);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo many outer to arrays', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  2-----4--------3--------2-------|');
            var e1subs = '  ^-------------------------------!';
            var expected = '(0123)(0123)---(0123)---(0123)--|';
            var result = e1.pipe((0, operators_1.mergeMapTo)(['0', '1', '2', '3']));
            expectObservable(result).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo many outer to inner arrays, and outer throws', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  2-----4--------3--------2-------#');
            var e1subs = '  ^-------------------------------!';
            var expected = '(0123)(0123)---(0123)---(0123)--#';
            var result = e1.pipe((0, operators_1.mergeMapTo)(['0', '1', '2', '3']));
            expectObservable(result).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should mergeMapTo many outer to inner arrays, outer gets unsubscribed', function () {
        testScheduler.run(function (_a) {
            var hot = _a.hot, expectObservable = _a.expectObservable, expectSubscriptions = _a.expectSubscriptions;
            var e1 = hot('  2-----4--------3--------2-------|');
            var e1subs = '  ^------------!                   ';
            var expected = '(0123)(0123)--                   ';
            var unsub = '   -------------!                   ';
            var result = e1.pipe((0, operators_1.mergeMapTo)(['0', '1', '2', '3']));
            expectObservable(result, unsub).toBe(expected);
            expectSubscriptions(e1.subscriptions).toBe(e1subs);
        });
    });
    it('should map and flatten', function () {
        var source = (0, rxjs_1.of)(1, 2, 3, 4).pipe((0, operators_1.mergeMapTo)((0, rxjs_1.of)('!')));
        var expected = ['!', '!', '!', '!'];
        var completed = false;
        source.subscribe({
            next: function (x) {
                (0, chai_1.expect)(x).to.equal(expected.shift());
            },
            complete: function () {
                (0, chai_1.expect)(expected.length).to.equal(0);
                completed = true;
            },
        });
        (0, chai_1.expect)(completed).to.be.true;
    });
    it('should map and flatten an Array', function () {
        var source = (0, rxjs_1.of)(1, 2, 3, 4).pipe((0, operators_1.mergeMapTo)(['!']));
        var expected = ['!', '!', '!', '!'];
        var completed = false;
        source.subscribe({
            next: function (x) {
                (0, chai_1.expect)(x).to.equal(expected.shift());
            },
            complete: function () {
                (0, chai_1.expect)(expected.length).to.equal(0);
                completed = true;
            },
        });
        (0, chai_1.expect)(completed).to.be.true;
    });
    it('should stop listening to a synchronous observable when unsubscribed', function () {
        var sideEffects = [];
        var synchronousObservable = new rxjs_1.Observable(function (subscriber) {
            for (var i = 0; !subscriber.closed && i < 10; i++) {
                sideEffects.push(i);
                subscriber.next(i);
            }
        });
        synchronousObservable.pipe((0, operators_1.mergeMapTo)((0, rxjs_1.of)(0)), (0, operators_1.take)(3)).subscribe(function () {
        });
        (0, chai_1.expect)(sideEffects).to.deep.equal([0, 1, 2]);
    });
});
//# sourceMappingURL=mergeMapTo-spec.js.map

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